For us, developing and learning the forearm pronated cutter is essential to learning the whole process for current and later use. The pronated cutter teaches “axis presentation” understanding from the torque release (outside) side of the ball. This later allows them to Radial flex their wrists a little more to then become a forearm pronated Slider that they learn at 16 BYO.
Here is a pronated version of the Cutter from an unintuitive arm slot, this pitch becomes even better from over the top.
The most important thing a youth pitcher or field player can learn is why the ball moves, not just show them a grip that enhances it. This the reason kids do not learn pitch design that takes many years. The younger the better.
Coaches need to learn that all pitch types can be forearm pronated and the Torque side (Curves, Sliders and cutters) are taught then performed by intuitively forearm supinating, this destroys Elbows.
Youth pitch distance does not matter! All things being relative will act relatively depending on velocity, atmosphere and spin axis presentation, they do all the things at higher power just less actively. It’s the early motor learning and non injurious force application, that is important!
The very best time to learn is between 2 and 9 when you have the most brain power to learn by way of actual gray matter ability, Neural Plasticity is the science, if you need more info on this fact.
All our clients learn 3 fastballs, All forearm pronated. As early as possible!
To start, this lays the foundation for later increased movement by increasing the range of motion of the arm to achieve a Curve, Slider, Sinker and Screwball. They already understand “axis presentation”, that gives them a great learning advantage for the later pitch types. Some of these kids that start early have all 6 pitches by the time they are biologically 16.
The straight and lifting equated horizontally axis presentation backspin fastball (6/12)( traditionally a supinated 4 seamer), We throw this only up, out of the strike zone as a retinal imprinter on batters.
The ball arm side laterally moving fastball (maxline)(traditional nominal forearm 2 seamer) where the “circle of friction” is presented forwards and up 5 degrees each direction that produces downwards and lateral force by Ulnar flexing the wrist thru drive and recovery. Knee high.
The glove arm side laterally moving fastball (Torque)(traditional supinated Cutter) where the “circle of friction” is also presented forwards and up at 5 degrees each direction by Radial flexing the wrist thru drive and release. Knee high.